REACHUS

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19 Favorites

added views newest activity votes

8

33

votes

12

answers

4

kviews

I have learned that 1/0 is infinity, why isn't it minus infinity?

infinity

jun 13 '12 at 8:10 mike4ty4 1,430

5

30

votes

8

answers

2

kviews

How to prove that $\lim\limits_{x\to0}\frac{\sin x}x=1$?

homework calculus trigonometry limit

may 16 at 18:01 experimentX 3,513

27

25

votes

4

answers

3

kviews

Connection between fourier transform and taylor series

intuition fourier-analysis taylor-expansion integral-transforms

mar 19 '11 at 8:49 Christian Blatter 32.3k

7

21

votes

5

answers

1

kviews

How do you calculate the decimal expansion of an irrational number?

numerical-methods approximation irrational-numbers pi

aug 15 at 15:54 Argon 9,248

4

18

votes

3

answers

2

kviews

What algorithm is used by computers to calculate logarithms?

algorithms numerical-methods logarithms computational-mathematics

sep 1 '11 at 18:29 J. M. 38.9k

3

12

votes

3

answers

679

views

Guidelines for learning about Ramanujan's work?

soft-question big-list education

mar 4 '12 at 11:53 Dibyajyoti pathak 1

3

11

votes

4

answers

442

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Good introductory book on fluid dynamics

reference-request fluid-dynamics

jan 13 at 2:29 Shibi Vasudevan 301

2

10

votes

2

answers

975

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Things I must know before taking differential equations course

differential-equations reference-request

may 24 '11 at 14:29 user151193 153

1

10

votes

5

answers

493

views

Solving $\lim\limits_{x \to 0^+} \frac{\ln[\cos(x)]}{x}$

calculus limit

nov 4 at 20:10 Chris's wise sister 11.5k

5

6

votes

3

answers

210

views

Banach Tarski — any demonstration?

general-topology set-theory

feb 17 at 4:01 stan wagon 748

3

6

votes

4

answers

328

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How do I solve this exponential equation? $5^{x}-4^{x}=3^{x}-2^{x}$

transcendental-equations

feb 2 at 5:28 N. S. 27.4k

2

4

votes

1

answer

242

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reference for Navier-Stokes equation

reference-request pde

apr 29 '11 at 15:26 Willie Wong♦ 30.6k

4

4

votes

1

answer

209

views

proof of Poisson formula by T. Tao

analysis fourier-analysis intuition fourier-series

feb 17 at 0:00 Haskell Curry 11.1k

2

4

votes

3

answers

316

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Solving $\lim\limits_{x\to0} \frac{x - \sin(x)}{x^2}$ without L'Hospital's Rule.

calculus limit

jan 22 at 18:57 smew 1

5

3

votes

4

answers

2

kviews

Why is $22/7$ a better approximation for $\pi$ than $3.14$?

approximation pi

may 18 '12 at 1:20 user17762 76k

2

2

votes

2

answers

108

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Finding: $\lim_{x \to \frac{\pi}{2}} \frac{\tan{2x}}{x - \frac{\pi}{2}}$

calculus real-analysis trigonometry limit

sep 3 '11 at 22:22 Américo Tavares 20.5k

2

2

votes

4

answers

123

views

Integral of type $\displaystyle \int\frac{1}{\sqrt[4]{x^4+1}}dx$

calculus indefinite-integral

feb 17 at 13:33 achille hui 6,282

3

2

votes

3

answers

134

views

Calculate limit using Riemann integral

homework integral limit

feb 21 at 23:36 Chris's wise sister 11.5k

1

0

votes

1

answer

191

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comparing two definite integrals

integral

jan 23 '11 at 12:06 Jacopo Notarstefano 618

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